The OP is concerned about the difference in numbers between ATTO and crystal mark.

If you do a comparison with what Tweaktown manage with CrystalDiskMark, the same benchmark the OP is using, you'll see that the OP has less write performance than Tweaktown have reported.

In any case Scatmango, whilst the write performance is less than Tweaktown have reported, your ATTO and Crystal benchmark mirror their findings. You don't need to be concerned about the performance difference between the two. It's probably just the difference between their hardware and yours.

Good grief people, anyone testing an OS drive is not going to get the same performance that you see in these hardware reviews. The drives in these "tests" are benchmarked as a bare drives under the best possible conditions. Once you load an OS on the drive, or start filling it with data, some of those numbers start falling off considerably.

Good grief people, anyone testing an OS drive is not going to get the same performance that you see in these hardware reviews. The drives in these "tests" are benchmarked as a bare drives under the best possible conditions. Once you load an OS on the drive, or start filling it with data, some of those numbers start falling off considerably.

You're completely right. I'm just using it as reference comparison though. I think it's more useful that just providing a yes or no answer.